chase



(No Model.)`

W. K. CHASE.

Alarm Glock.

No. 240.090. Patented April 1'2, 188|.

l m... TELIIII UNITED STATES PATENT OFFICE.

WILLIAM K. CHASE, OF MANDARIN, FLORIDA.

ALARM- CLOCK.

SPECIFICATION forming part of Letters Patent No. 240,090, dated April12, 1881.

Application filed February 21, 1881.

To ZL lwhom t may concern Be it known that I, WILLIAM KENDRICK CHASE, acitizen of the United States, resid ing at Mandarin, in the county ofDuval and State of Florida, have invented new and useful Improvements inAttachments for Clocks, of which the following is a speciiication.

The object of the present invention is to provide an attachment forclocks which will give warning, by the ringing of a bell or display of asign al, whenever the clock needs windin g up, and also when, during thewinding operation, the motor-spring is sufficiently strained, thusavoiding all danger of accident.

The invention consists in the combination, with the motor-spring oractuating devices of a clock, of-an alarm or signal mechanism comprisinga wheel or pulley carrying two movable tappets, a cord connected withsaid wheel and with the shaft or arbor of the main wheel of the clock,and an arm or rod adapted for engagement with the tappets and connectedwith a bell or other audible or visible signal.

In the drawings, Figure 1 is a face view of my alarm mechanism and themain wheel, motor-spring, and pendulum of an ordinary clock. Fig. 2 isan end elevation, showing more fully the manner of connecting my alarmmechanism With the arbor of the motor-spring of an ordinary clock. Fig.3 is a detail View, showing the position of the tappet when engagingwith the bell-actuatin g rod. Fig. 4t is a similar view, illustratingthe tappet disengaged from said bell-actuating rod.

The letter A designates the main wheel of an ordinary clock, and I3 isthe coiled motorspring fitted on the winding-arbor C. These partsconstitute the actuating devices of an ordinary clock. The winding-arborC receives a cord or chain, D, which extends in a downward direction andpasses around the periphery of a wheel or pulley, E. This wheel isjournaled in a suitable frame, F, which is arranged in any suitableposition within the clock-casing, although I prefer to locate it at theright of the pendulum K and in rear of the same. The shaft G of thewheel E carries a coiled spring, H, the outer end of which is secured tothe frame F and the inner end to said shaft G. The wheel E has twooppositely-lo- (No model.)

cated arms, I, which extend beyond the periphery thereof and carry thepivoted tappets J J. These tappets are fitted in the forked ends of thearms I, andare free to swing therein, for the object hereinafter stated.The wheel E and its tappets are arranged in proper relation to ahorizontal rod or arm, L, which is free to slide in suitable guides orkeepers within the clock-casing, and is connected with the verticalspring-arm M of a bell, N. The rod L has a V-shaped or angular bottomprojection, O, which serves as a stop for the tappets and causes amovement of said rod either to the left or right for sounding the bellor alarm.

The operation of the devices above described is as follows, viz: The actof winding up the motor-spring of the clock will cause the cordconnected with the winding-arbor to be wound around said arbor andeffect a partial revolution of the wheel or pulley E to the left. Themain wheel and spring of the clock and the wheel or pulley E are soproportioned that when the spring is sufficiently wound np the tappet Jis brought around to the projection of the arm or rod L, so as to causea movement of the latter to the right, and thus effect the ringing ofthe bell, which gives notice to cease winding, because the spring hasbeen sufcien tly strained. The windin g of the cord on themainspring-arbor of the clock has also caused the compression of thespring II of the wheel E. Thus it will readily be understood that whensaid cord is loosened or unwound from the mainspring-arbor the wheelE isgradually made to turn to the left by the expansive force of the springH, and when the tappet J reaches the stop or projection on thebell-aetuating rod it will push the same to the left and sound theproper alarm for giving notice that the motor-spring of the clockrequires winding up. The spring H serves to carry the tappet J beyondthe projection on the bellactuating rod, so as not to arrest themovement of the clock mechanism. This result is permitted by the use ofa tappet, which, after it has exerted its proper pushing force, turns onits pivot or passes beyond the projection on the rod, as is shown inFig. 4.

I have in the present instance illustrated a IOO bell or audible alarm;but it will be obvious that I may make use of a visible signal, thedisplay of which is effected by the devices heretofore described.

Although the same bell which strikes the hour may be employed, Ipreferably use a distinct bell, which differs in sound and is eapableot' ringing repeatedly by the vibrations of a spring attaching arm.

Heretofore an alarm has been connected with a clock mechanism in suchmanner as to sound the alarm when the clock requires rewinding; andsuch, broadly, I do not claim. Neither do I claim a Watch in which apointer is rotated by the Winding mechanism and arranged to co-operatewith a dial in order to indicate When the Watch requires rewindin g andwhen it is Wound up.

What I claim is- 1. The combination, with the actuating mechanism of aclock, of an alarm or signal disconnected from and independent of theclockactuating mechanism, and devices, such substantially as described,connected with the winding-arbor of the clock and arranged t0 operatethe alarm or signal at predetermined intervals, to indicate both whenthe clock requires rcwinding and when it is sufficiently Wound, as setforth.

2. The revolving wheel or pulley carrying movable tappets, and having acoiled spring` and a cord or chain, and the sliding` rod 0r armconnected with a signal device, in com bination Wit-h themainspring-arbor 0f a clock, substantially as herein set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

WILLIAM KENDRIGK CHASE.

Witnesses:

ALBERT H. Noums, JAMES A. RUTHERFORD.

